Pioneer DR-944 Computer Drive User Manual


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OB-U0192
6
Specifications
1. Disc Format
• CD-ROM Mode 1
• CD-ROM XA Mode2 (form 1, form2)
• Photo CD ( single and multiple session)
• Video CD (4.4x – 10x)
• CD-DA (4.4x – 10x at Audio Play, 8.8x – 20x at Read CD-DA )
• CD-Extra
• CD-RW (read only, 4.4x –10x)
•
CD-I Ready
2. Disc Size
• 12 cm
• 8 cm (4X at data disc, Horizontal operation only)
Precautions on playing CD singles(8cm discs)
An 8cm disc can be played only when the drive is horizontal condition and the disc is set in the
8cm groove on the disc tray at loading.
Do not use an adapter for 8cm disc in any conditions for this drive, or malfunction may occur.
3. Data Transfer Rate
Parameter
Min.
Typ.
Max.
Unit
Note
inner 2250 2415 2625 kBytes/sec
Sustained
outer 6000 kBytes/sec
Max. 40X CAV Mode
Burst 4.0 33.3 MBytes/sec
Maximum data transfer rate is specified with a disc of 1.2m/s linear velocity.
4. Buffer Memory Size
• 128 kBytes
5. Access Time/ Seek Time
Parameter
Min.
Ave.
Max.
Unit
Note
Access Time 70 140 msec
Random Average
CD-ROM Mode1 Disc
Random Seek Time 60 90 msec Random Average
Full Stroke Seek Time 160 300 msec
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